Basically now the FFT works more like a spectrum analyzer, you no longer have control of the Horizontal "Timebase", and as you adjust span/start/stop frequency (or the Horizontal Knobs) the Timebase and Samplerate are adjusted accordingly to keep Nyquist happy, there are no new Measurements, at least that I can see, and no you can't use the FFT trace as a source for measurements.
Its different, I need to use it more to decide if I'm convinced, so far I like it.
Math works as expected, at least what I tested so far, unfortunately we don't have filters, I know its not a feature usually found in this price range, but I was hopeful.
Maybe I'm missing something, but why is the Single Shot not Disabling Auto Trigger Bug/(Feature?) still a thing?